AutoCodes – Nissan – P2123 2007 Nissan Maxima

P2123 2007 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2123 2007 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes: Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,457

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2123 2007 Nissan Maxima Description

The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the Engine Control Module (ECM). Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the accelerator pedal and feed the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals. Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine operation such as fuel cut.

OBDII Code P2123 2007 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com — P2123 2007 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2123 2007 Nissan Maxima?

Faulty Accelerator Pedal Position Sensor
Accelerator Pedal Position Sensor harness is open or shorted
Accelerator Pedal Position Sensor circuit poor electrical connection

How to Fix the DTC P2123 2007 Nissan Maxima?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2123 2007 Nissan Maxima code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2123 2007 Nissan Maxima code?

Need more information on how to fix the P2123 2007 Nissan Maxima code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2123 2007 Nissan Maxima Code

1. What are common symptoms of OBDII code P2123 on a 2007 Nissan Maxima?

- Common symptoms of code P2123 may include reduced engine power, hesitation or stalling when pressing the accelerator pedal, and the vehicle going into limp mode.

2. What does the OBDII code P2123 for a 2007 Nissan Maxima indicate?

- OBDII code P2123 indicates an issue with the accelerator pedal position sensor circuit, specifically relating to range/performance.

3. What are the possible causes of OBDII code P2123 on a 2007 Nissan Maxima?

- Possible causes of code P2123 include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose the OBDII code P2123 on my 2007 Nissan Maxima?

- Diagnosing code P2123 involves using a scan tool to retrieve the code, checking the sensor's wiring and connectors for damage, and testing the sensor's functionality.

5. Can I continue driving my 2007 Nissan Maxima with OBDII code P2123 present?

- It is not recommended to continue driving your vehicle with code P2123 present, as it can lead to performance issues and potential safety concerns.

6. How can I repair OBDII code P2123 on my 2007 Nissan Maxima?

- Repairing code P2123 may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Are there any DIY tips for fixing OBDII code P2123 on a 2007 Nissan Maxima?

- DIY tips for fixing code P2123 include checking the sensor's wiring for visible damage, ensuring connectors are securely attached, and following a service manual for proper repair procedures.

8. How much does it cost to fix OBDII code P2123 on a 2007 Nissan Maxima?

- The cost to fix code P2123 can vary depending on the root cause of the issue, but it may range from a couple of hundred dollars for parts and labor to more if additional components need replacement.

9. Can a mechanic reset the OBDII code P2123 on my 2007 Nissan Maxima without fixing the underlying issue?

- While a mechanic can clear the code, it is crucial to address the underlying issue causing code P2123 to prevent it from reoccurring and potentially causing further damage.

10. Will code P2123 on a 2007 Nissan Maxima cause the check engine light to illuminate?

- Yes, code P2123 triggering a fault in the accelerator pedal position sensor circuit will likely cause the check engine light to illuminate on the dashboard.